Update TimeIntervalPicker.swift
Update TimeIntervalPicker.swift

Added the ability to set and display (optional) suffix strings for components
safakge/TimeIntervalPicker,ChernyshenkoTaras/TimeIntervalPicker,safakge/TimeIntervalPicker,safakge/TimeIntervalPicker,ChernyshenkoTaras/TimeIntervalPicker,ChernyshenkoTaras/TimeIntervalPicker